CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Statement of Stockholders' Equity [Abstract]
Dividends declared (in dollars per share)	$ 0.01	$ 0.01
Restricted shares granted (in shares)		62,105
Redemption of preferred stock (in shares)	9,733
Issuance of common stock (in shares)	1,359